Post DOMTimers on the corresponding LocalFrame's timer queue

Source/core/frame/LocalDOMWindow.cpp

Index: Source/core/frame/LocalDOMWindow.cpp
diff --git a/Source/core/frame/LocalDOMWindow.cpp b/Source/core/frame/LocalDOMWindow.cpp
index 87e8c5891b1ba1eff4d79b06e1d3f244e3af3e97..474459238cd69eb3b6e3f24edfcae78650029ae8 100644
--- a/Source/core/frame/LocalDOMWindow.cpp
+++ b/Source/core/frame/LocalDOMWindow.cpp
@@ -70,6 +70,7 @@
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "public/platform/Platform.h"
+#include "public/platform/WebFrameScheduler.h"
 #include "public/platform/WebScreenInfo.h"
 
 namespace blink {
@@ -148,6 +149,11 @@ public:
         SuspendableTimer::trace(visitor);
     }
 
+    WebTaskRunner* timerTaskRunner() override
+    {
+        return m_window->frame()->frameScheduler()->timerTaskRunner();
+    }
+
 private:
     void fired() override
     {